[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1968.01.17"]
[Round "7"]
[White "Portisch, Lajos"]
[Black "Langeweg, Kick"]
[Result "1-0"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nbd7 8. a3 Ba5 9. Qc2 dxc4 10. Bxc4 Qe7 11. dxc5 Qxc5 12. Na4 Qc7 13. Qe2 a6 14. b4 b5 15. bxa5 bxa4 16. Bd3 Nc5 17. Bd2 Nb3 18. Ra2 Bb7 19. Rc2 Qd7 20. Bb4 Rfc8 21. Ne5 Rxc2 22. Nxd7 Rxe2 23. Nxf6+ gxf6 24. Bxe2 Rd8 25. Rd1 Rxd1+ 26. Bxd1 f5 27. f3 Kg7 28. Kf2 f6 29. Be2 Kf7 30. Bc4 Bc8 31. Kg3 Nc1 32. Kh4 Kg6 33. h3 Nb3 34. Bd3 Kg7 35. g4 fxg4 36. hxg4 Nc1 37. Bc2 Bd7 38. Bd2 Nb3 39. Bc3 h6 40. Bd3 Bc8 41. Bb4 Nc1 42. Bc4 Kg6 43. f4 f5 44. g5 e5 45. fxe5 1-0